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Northwest Africa 11978 | |||||||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 11978 This is an OFFICIAL meteorite name. Abbreviation: NWA 11978 Observed fall: No Year found: 2015 Country: (Northwest Africa) Mass: 1159 g | ||||||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 62 approved meteorites classified as L3-6. [show all] Search for other: L chondrites, L chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3) | ||||||||||||||||||||||||||||||||||
Comments: | Approved 9 Oct 2018 | ||||||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 107:
Northwest Africa 11978 (NWA 11978) (Northwest Africa) Purchased: Nov. 2015 Classification: Ordinary chondrite (L3-6) History: Purchased by Li Bofang from a Morrocoan dealer at the mineral show in Beijing in Nov. 2015. Physical characteristics: Brown 1159 g stone of about 10 cm in diameter. Petrography: (R. Bartoschewitz, Bart, B. Li, Beijing) cut surface shows brown matrix with poor to well defined chondrules of 0.3 - 5 mm of various types (PO, PP, POP, RP), and dark xenolites. Metal is nearly complete oxidized. Geochemistry: (R. Bartoschewitz, Bart, P. Appel and B. Mader, Kiel) Olivine Fa23.2±2.0 (n=23); pyroxene Fs17.0±5.6Wo1.5±1.4 (n=13); Ca-pyroxene Fs26.9Wo73.1 (n=1). Magnetic susceptibility (R. Bartoschewitz, Bart) log χ (× 10-9 m3/kg) = 4.48. Classification: ordinary chondrite (L3-6) Specimens: 20.1 g on deposit at Kiel, B. Li holds the main mass and 67 g with Bart. | ||||||||||||||||||||||||||||||||||
Data from: MB107 Table 0 Line 0: |
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Institutions and collections |
Kiel: Geologisches und Mineralogisches Museum, Institut für Geowissenschaften, Christian-Albrechts-Universität Kiel, Ludewig-Mayn-Str. 10, D-24118 Kiel, Germany, Germany (institutional address; updated 13 Sep 2013) Bart: Bartoschewitz Meteorite Laboratory, Weiland 37, D-38518 Gifhorn, Germany; Website (private address; updated 30 Nov 2019) Beijing: Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China (institutional address; updated 16 Oct 2011) |
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Catalogs: |
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References: | Published in Meteoritical Bulletin, no. 107, MAPS 55, 460-462
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Geography: |
Statistics: This is 1 of 9589 approved meteorites from (Northwest Africa) (plus 1869 unapproved names) | ||||||||||||||||||||||||||||||||||
Also see: |
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Revision history: |
This lists important revisions made to data for this record.
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